Raúl E. Rojas

Analyst of Natural Gas Prices of twenty Countries of the World

World Products Trading S.A.C.

La Conquista street 289 department 101B, El Derby urbanization, Santiago del Surco - Lima, Peru.

(051-***-****** / (051-***-******

pe.linkedin.com/in/raulrojasvillasis / adhach@r.postjobfree.com

ACADEMIC DEGREES

M.S., National University of San Agustín de Arequipa, 2012 (Date of thesis defense: November 2021) Masters in Earth Sciences - Minor in Geological Exploration Geologist Engineer degree,

National University of Engineering, 2009 Refresher Course, graduated with honors

B.Sc., National University of Engineering, 1997

Geological Engineering, graduated as the first place

OUTSTANDING PROFESSIONAL ACHIEVEMENTS

2017 - 2018 Matkal: Sale of 4,272 m3 of crushed limestone (94.3 % CaCO3 Equiv.) - Cajamarca, Peru.

2016 Safety and Occupational Health Certification "Coaching the Trainer" - Cajamarca, Peru.

2013 Hochschild Mining plc: I helped ensure the quality of logging and sampling - Cajamarca, Peru.

2007 Newmont Corporation: Find gold in deposits: 869 K-ounces (inventory) in San José Gravels, 800 K-ounces (resources) in La Quinua Sur and 137 K-ounces (resources) in Máximo - Cajamarca, Peru

2005 Newmont Corporation: Find ~250 K-ounces of gold in Quecher deposit - Cajamarca, Peru.

1998 Newmont Corporation: Find ~10 M-ounces of gold in La Quinua deposit - Cajamarca, Peru.

PROFESSIONAL EXPERIENCE

July 2020 - present: World Products Trading S.A.C.

Analyst of Natural Gas Prices of twenty Countries

The countries where I analyze the Natural Gas price are Uruguay, Chile, Argentina, Brazil, Peru, Colombia, Ecuador, Bolivia, Venezuela, United States, Canada, Mexico, Germany, United Kingdom, France, Spain, Australia, Japan, South Korea, and China.

March 2020 - June 2020: World Products Trading S.A.C.

Analyst of Natural Gas Prices of eighteen Countries

The countries where I analyze the Natural Gas price are Peru, Colombia, Brazil, Bolivia, Ecuador, Argentina, Venezuela, Mexico, United States, Canada, Germany, France, Spain, United Kingdom, Australia, China, Japan and South Korea.

October 28th, 2019 - December 20, 2019: CENFOMIN

Teacher of courses related to environment and geology

The courses I taught were Environmental Toxicology, Pollutant Dispersion, Pollution, Remediation and Monitoring of Waste, and General Geology.

June 10th, 2019 - August 15, 2019: SECURITAS

Occupational Health and Safety Supervisor

Improvement of Health and Safety of SECURITAS employees that work in the Yanacoha mine - Cajamarca, Peru.

August 09th, 2018 - June 9, 2019: MATKAL INGENIERÍA S.R.L.

Manager and Safety supervisor

Improvement of accounting, obtaining materials and replacement of operation manager.

April 20th, 2018 - May 25, 2018: CIEMAM S.A.C.

Geologist responsible for Safety and Instructor

Improvement of safety in the ex-mine Colquirrumi (Cajamarca, Peru) & revision of Reports of some students who did Internships.

December 13rd, 2016 - August 8, 2018: MATKAL INGENIERÍA S.R.L.

Manager and Safety supervisor

My partners and I acquired a crushing plant and built a cavern (Cajamarca, Peru). We crushed limestone in the “Cordillera B-1” quarry (Hualgayoc), from where we sold 4,272 m3 of crushed limestone (94.3 % CaCO3 Equiv.). Then, we crushed river stone in the La Isla quarry (Hualgayoc - Cajamarca, Peru).

October 21st, 2016 - December 13, 2016: MATKAL INGENIERÍA S.R.L.

Senior Geologist

Evaluation of copper, gold, carbon, shale and limestone projects in Cajamarca.

September 23rd, 2016 - December 29, 2016 Geologist Instructor

ESR Entrenamiento y Capacitación: Instructor in Mining Safety courses.

May 29th, 2014 - March 16, 2016 Geologist Instructor

CETEMIN: Instructor in Sampling, Mineral Quality Control and Safety & Occupational Health courses.

ESR Entrenamiento y Capacitación: Instructor in Mining Safety courses. ISEM: Instructor in Safety and Occupational Health courses.

CETEMIN: Instructor in mining geological courses. I shared the General Geology course at Raura mine (Compañía Minera Raura S.A.) and the Geological Sampling course at Cerro Lindo mine (Milpo).

July 2013 - November 2013: GeoWissens Senior Geologist

Improvement of the codes of minerals and rocks.

Elaboration of the budget to mapping and sampling for Poderosa Company. I helped to make the scale model of the watersheds around a mining project of Buenaventura Company. Preparation of information to evaluate some concessions in Ayacucho (southern Peru).

November 2012 - April 2013: Hochschild Mining plc Senior Geologist Improvement of safety standards.

Improvement of geology by innovating geological logging of drilling samples. Quality Assurance of geological record and sampling of the drilling samples. Supervision of sampling for density tests.

Newmont Corporation, Yanacocha Mining District (South American operation - Cajamarca, Peru):

June 2010 - September 2012 Senior Geologist

Internal Auditing of Maximo, Carachugo Upper and Yanacocha Sur Layback epithermal gold projects. Re-logging campaign of Cerro Negro Este and Oeste epithermal gold projects. Modeling of lithology and alteration of Cerro Negro Este epithermal gold project. Development of San José Gravel gold-bearing gravel project: drilling, geology, sampling and modeling. Optimization of clays model in Cerro Negro Oeste epithermal gold project. Improvement of geology of gold-bearing gravel projects innovating the logging format.

June 2007 - May 2010 Mine, Development & Exploration Geologist Preparation of information to obtain Environmental Permits to explore in Yanacocha Mining District. Find of 869 K-ounces (gold) in San José Gravas, 800 K-ounces (gold) in La Quinua Sur and 137 K- ounces (gold) in Maximo gold-bearing gravel projects.

April 2004 - May 2007 Mine and Development Geologist II

Geological mapping of walls of Chaquicocha pit and comparison versus logging of detritus of blast-holes. Reconciliation of geology and gold model of Chaquicocha pit versus geology of walls and gold assays of detritus of blast-holes.

Find of ~250 Koz of oxide inventory gold in Quecher epithermal gold project. Generation of several drilling targets in Chaquicocha, Carachugo and Quecher epithermal gold projects. Development of Cerro Negro and Cerro Quilish epithermal gold projects: Geology, geochemistry, drilling and logging.

January 1999 - March 2004 Mine and Development Geologist

I Logging of detritus of blast-holes and mapping of slopes in La Quinua open pit. Sampling for density and metallurgical tests in El Tapado, Cerro Negro, Cerro Quilish and Corimayo epithermal gold projects and in La Quinua gold-bearing gravel project. Mapping of slopes and logging campaign in La Quinua gold-bearing gravel project. 1998: VSV Assistant Geologist

Find ~10 M-ounces of gold reserve (oxides) in La Quinua gold-bearing gravel project.

PUBLICATIONS

2004 Mallette, Patrick, Rojas, Raúl, and Gutiérrez, Alberto,

Geology, Mineralization, and Genesis of the La Quinua Gold Deposit, Yanacocha District, Northern Peru, Society of Economist Geologists, Special Publication 11, 2004, pp. 301–312.

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